JPH0629607Y2 - Inspection cover for air conditioner - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a mounting frame fixed to an inspection port formed in a casing or a duct of an air conditioner whose inside is covered with a heat insulating material. By inserting a door that can be inserted and removed or opened and closed freely, and by operating the handle that is rotatably supported by the bearing that penetrates the door, engage the clasp attached to the tip of the handle with the attachment frame. The present invention relates to an air conditioner inspection cover that closes the inspection opening.

(Prior Art) FIG. 4 is a front view of a conventional air conditioner inspection lid, and FIG. 5 is a partial cross-sectional view of a mounting frame of the air conditioner inspection lid and a door taken along the line AA in FIG. 1 is a casing or duct of an air conditioner (hereinafter referred to as "casing"), 2 is a heat insulating material such as glass wool attached to the inner wall side of the casing 1,
3 is an inspection port opened at a desired position of the casing 1, 4
Is a groove-shaped support frame 4b formed by bending the front side (upper side in the figure) of the frame base 4a that fits into the inspection port 3 to the outside of the frame base 4a, and opening the rear side of the frame base 4a. Side (lower side in the figure) is bent to the inside of the frame base portion 4a and a groove-shaped door receiving frame portion 4c that opens to the front side is formed. A mounting frame having a hook-shaped cross section, and 5 is fitted to the support frame portion 4b. The packing, 6 is the packing fitted to the door receiving frame portion 4c, and 7 is the hooking claw formed by cutting and raising a part of the substrate. The hooking claw 7 is designed so that its free end opens to the front side. The substrate is welded to the outer wall side of the frame base 4a of the mounting frame 4. Reference numeral 8 denotes a frame base portion 8a located outside the frame base portion 4a of the mounting frame 4, and a rear portion of the frame base portion 8a is bent to the outside of the frame base portion 8a to provide a collar portion 8b. In the frame, a locking hole 8c is formed in the frame base portion 8a of the locking frame 8.
However, a screw hole 8d is formed in each of the collar portions 8b. 9 is a screw that is screwed into the screw hole 8d of the latch frame 8, and 10 is
Insulating material 11 such as glass wool is filled on the back side of the outer plate 10a having the outer peripheral edge bent to the back side, and the inner plate 10b having the outer peripheral edge bent to the back side is provided on the back side of the outer plate 10a. It is a door which is fitted and welded to the outer peripheral edge of the outer plate 10a and the outer peripheral edge of the inner plate 10b. A round peephole 10c is formed in the center of the door 10 (see FIG. 6). ) Together with the outer plate 1 around the peephole 10c
Six holes 10d and 10e are provided in the 0a and the inner plate 10b at equal intervals (see FIG. 6). 12 is a metal handle, 13 is a metal clasp integrally attached to the shaft of the handle 12, 14 is a metal bearing penetrating near the four corners of the door 10, and this bearing 14 is the handle 12 Also, the retainer 13 is pivotally supported.

In the conventional example thus configured, first, the inspection port 3
In order to attach the mounting frame 4 to the mounting frame 4, the mounting frame 4 is fitted into the inspection port 3 from the front side, the locking frame 8 is fitted into the inspection port 3 from the rear side, and the locking claw 7 of the mounting frame 4 is hooked. The screw 9 which is engaged with the retaining hole 8c of the retaining frame 8 and screwed into the screw hole 8d of the retaining frame 8 is screwed in. Then, the tip of the screw 9 comes into contact with the inner wall side of the casing 1 to move the latching frame 8 in the rearward direction, so that the mounting frame 4 engaged with the latching frame 8 via the latching claw 7 also. The support frame portion 4 of the mounting frame 4 is moved to the rear direction
b is pressed against the outer wall side of the casing 1. That is, the mounting frame 4 is fixed to the casing 1 by sandwiching the casing 1 around the inspection port 3 with the support frame portion 4b and the screw 9, and the space between the casing 1 and the mounting frame 4 becomes the support frame portion 4b. It is sealed by the fitted packing 5.

Next, in order to attach the door 10 to the attachment frame 4 and close the inspection port 3, the door receiving frame portion 4 of the attachment frame 4 attached to the casing 1
After fitting the door 10 into c, turn the handle 12 and
Is engaged with the door receiving frame portion 4c of the mounting frame 4. Then the door
The outer peripheral end protruding to the back side of 10 is pressed against the packing 6 of the door receiving frame portion 4c to fix the door 10 to the mounting frame 4, and the space between the door 10 and the mounting frame 4 is sealed by the packing 6. To be done.

FIG. 6 is a partial cross-sectional view of the door of the air conditioner inspection lid and the viewing window taken along the line BB in FIG. 4, and the same reference numerals as those in FIGS. 4 and 5 indicate the same portions. Further, 15 is a groove-shaped ring-shaped outer window frame in which the inner peripheral edge portion is bent to the back side, and six holes 15a are formed at equal intervals on the outer peripheral side of the outer window frame 15. There is. 16 is a groove-shaped support frame portion 16b that bends the front side of the frame base portion 16a fitted in the peephole 10c to the outside of the frame base portion 16a and opens to the rear side so as to face the inner peripheral side of the outer window frame 15. A ring-shaped inner window frame with a hook-shaped cross section formed by bending the back side of the frame base 16a inward and opening it to the front side by opening it to the front side. Six holes 16d are formed at equal intervals in 16 supporting frame portions 16b. Reference numeral 17 denotes a ring-shaped packing fitted inside the rear surface of the outer window frame 15, 18 denotes a ring-shaped packing fitted to the support frame portion 16b of the inner window frame 16, and 19 denotes a window plate receiving frame portion of the inner window frame 16. Ring-shaped packings fitted to 16c, 20 and 21 are disk-shaped window plates made of transparent heat insulating material such as acrylic resin, and the outer diameter of the window plates 20 and 21 is the frame base of the inner window frame 16. It is almost equal to the inner diameter of 16a. 22 is a heat retaining ring made of rubber or the like, and the outer diameter of this heat retaining ring 22 is a window plate.
Equal to the outer diameter of 20 and 21, the inner diameter is the outer window frame 15 and the inner window frame 16
Equal to the inner diameter of. 23 is a ring-shaped window mounting frame formed by bending a groove-shaped support frame portion 23b that is bent to the outside on the back side of the frame base portion 23a and opens to the front side so as to face the support frame portion 16b of the inner window frame 16, Six holes 23c are formed at equal intervals in the support frame portion 23b of the window mounting frame 23. 24 is a support frame portion 23b of the window mounting frame 23
The ring-shaped packing fitted in the above, 25 is a screw screwed with the nut 26.

In the conventional example configured in this way, the window plate 2 is inserted in the peephole 10c.
In order to attach 0 and 21, first, the window plate 21, the heat retaining ring 22 and the window plate 20 are sequentially fitted and inserted into the window plate receiving frame portion 16c, and the outer window frame 15 is attached to the supporting frame portion 16b of the inner window frame 16 loaded. Which is fitted with
While fitting into the peep hole 10c from the side of the outer plate 10a, the window mounting frame 23
From the side of the inner plate 10b into the peephole 10c, and the holes 15a, 16d, 10
The screw 25 inserted through d, 10e and 23c is screwed onto the nut 26. Then, the outer window frame 15 and the inner window frame 16 and the window mounting frame 23 serve as a door.
The outer window frame 15, the inner window frame 16 and the window mounting frame 23 are inserted into the door 10 by sandwiching the door 10.
And the window plates 20 and 21 are fixed to the outer window frame 15 and the inner window frame.
16 and the window plates 20 and 21 are fixed to the door 10, and at the same time, the packing 17 is provided between the outer window frame 15 and the inner window frame 16 and between the outer window frame 15 and the window plate 20. Inner window frame 16 and outer panel 10
A packing 18 is provided between a and a, a packing 19 is provided between the inner window frame 16 and the window plate 21, a heat retaining ring 22 is provided between the window plate 20 and the window plate 21, and a window mounting frame 23 and an inner plate 10b are provided. The spaces are sealed by packings 24.

Therefore, when a conventional inspection cover for an air conditioner without a peephole or with a peephole is attached to the inspection port 3 of the casing 1, packings 5, 6, 17, 18, 18, 19, 24 and the heat retaining ring 2 are provided between the respective members.
Since the air is sealed by 2, the air whose temperature and humidity are adjusted inside the casing 1 does not leak from the inspection port 3 to the outside of the casing 1.

(Problems to be solved by the invention) However, the door receiving frame portion 4c of the mounting frame 4 disposed inside the casing 1, the latch claw 7, the latch frame 8, and the screw 9
, The inner plate 10b of the door 10, the clasp 13, the bearing 14, and the inner window frame 16
The frame base 16a and the window plate receiving frame 16c, the window mounting frame 23, the screw 25, and the nut 26 are not covered with a heat insulating material or the like,
Exposed.

Therefore, the heat of the air whose temperature and humidity inside the casing 1 have been adjusted passes from these exposed portions through the mounting frame 4, the screw 9, the door 10, the handle 12, the bearing 14, the inner window frame 16 and the screw 25. Is transmitted to the outside of the casing 1 to lower the thermal efficiency of the air conditioner, or to cause condensation on the air conditioner inspection cover or the casing 11 around the air conditioner inspection cover, and There is a problem that the casing 1 is corroded.

In view of such a problem, the present invention provides an inspection cover for an air conditioner that can prevent heat of air whose temperature and humidity inside the casing are adjusted from being transferred to the outside of the casing through a mounting frame, a door, and the like. It is intended to be provided.

(Means for Solving the Problems) An air conditioner inspection lid of the present invention is a heat insulating material that covers a portion of a mounting frame protruding into a casing or a duct, and a bolt and a nut that fix the mounting frame to the casing or the duct. And a heat insulating material that covers the inner wall of the casing or the duct around it, a heat insulating material that is cloth-bonded to the back surface of the outer plate of the door, and a bearing and a handle that are heat insulating members.

Further, the inspection window of the air conditioner inspection lid of the present invention has two window plates made of a transparent heat insulating member for closing the inspection hole formed in the door and the window plate receiving frame portion of the inner peripheral portion of the window plate. Two ring-shaped window frames that hold the outer peripheral edge and a plurality of counterbored holes are formed on one surface, and the other surface is positioned between the plurality of counterbored holes. A heat insulating ring made of a heat insulating material with a plurality of counterbored holes, a metal holding plate with the same outer and inner diameter as the heat insulating ring, and a window frame with the window plate inserted, the holding plate and the heat insulating ring. Then, by screwing it into the nut inserted into the counterbore on one side of the heat retaining ring, the screw that fixes the window frame, the window plate, the retainer plate, and the heat retaining ring together, and the window frame with the window plate fitted. , The outer panel of the door, the window frame, the window plate and the retaining plate are sequentially inserted through the heat retaining ring integrally fixed,
It is composed of a screw for fixing two window plates to the peephole of the door by screwing the nut into the counterbore hole on the other surface of the heat retaining ring.

(Operation) According to the air conditioner inspection lid of the present invention configured as described above, in the mounting frame and the door, the portion of the mounting frame protruding into the casing or the duct and the mounting frame is fixed to the casing or the duct. Since the inner wall of the casing or duct around the bolts and nuts and the periphery thereof and the back surface of the outer plate of the door are covered with a heat insulating material, and the handle and its bearing are formed of a heat insulating member, the temperature and humidity inside the casing or the duct. The heat of the adjusted air can be blocked from being transmitted to the outside of the casing or the duct through these portions.

In addition, in the peephole, a screw for integrally fixing the window frame, the window plate, the pressing plate, and the heat retaining ring is screwed into the nut inserted into the counterbore hole on one surface of the heat retaining ring, and the window plate is fitted. The screws that fix the window frame and the heat retaining ring that integrally secures the window frame, the window plate, and the holding plate to the outer plate of the peephole of the door are attached to the nuts inserted in the counterbore holes on the other side of the heat retaining ring. By screwing, the heat of the air whose temperature and humidity inside the casing are adjusted can be blocked from being transmitted to the outside of the casing.

As a result, the heat efficiency of the air conditioner is improved, and dew condensation does not occur on the casing around the air conditioner inspection lid and the air conditioner inspection lid, so that the air conditioner inspection lid and the casing do not corrode.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a front view of an air conditioner inspection lid of the present invention, and FIG. 2 is a partial cross-sectional view of the air conditioner inspection lid door and a mounting frame taken along line AA of FIG. The same reference numerals as those in FIG. 5 and FIG. 5 indicate the same parts, and 1a is a plurality of holes formed along the inspection port 3 in the casing 1 around the inspection port 3 and 27 is the inspection port 3. The front side (upper side in the figure) of the frame base 27a to be fitted into is bent to the outside of the frame base 27a to form a groove-shaped support frame section 27b that opens to the rear side, and the rear side of the frame base 27a (lower side in the figure) Side) is bent to the inside of the frame base 27a, and a groove-shaped door receiving frame portion 27c that opens to the front side is formed.
Is a bolt that is erected by welding on the back side of the support frame 27b, 2
9 is a nut screwed into the bolt 28, 30 is a heat insulating material such as sponge rubber fitted in the support frame portion 27b of the mounting frame 27, 31 is the mounting frame 2
Insulating material such as sponge rubber fitted in the door receiving frame portion 27c of 7,
32 is a heat insulating material such as rubber that covers the back surface and the inner surface of the door receiving frame portion 27c from the outer surface of the frame base portion 27a, and 33 is a heat insulating material that covers the back surface side of the casing 1 around the inspection port 3 A counterbore hole or groove 33a for accommodating the bolt 28 and the nut 29 is provided on the front side of the heat insulating material 33. 34 is a door in which a heat insulating material 35 such as glass wool is pasted on the back surface of an outer plate 34a whose outer peripheral edge is bent to the back side, and a round peephole 34b is formed in the center of the door 34 (fourth). (Refer to figure)
Four holes 34c are formed at equal intervals in the outer plate 34a around 4b, and holes 34d are formed near four corners of the door 34. 36 is a handle made of a heat insulating member such as synthetic resin, 37 is a bearing made of a heat insulating member such as synthetic resin that rotatably supports the shaft portion 36a of the handle 36, and a screw 37a is cut on the outer periphery of the bearing 37. There is. 38 is a nut screwed to the bearing 37, 39 is a heat insulating material 35
The washer 39 is interposed between the nut 38 and the nut 38. The washer 39 has a large outer diameter and a wide seat surface so that the heat insulating material 35 can reliably support the bearing 37. 40 is a plate-shaped clasp with its tip bent to give elasticity, 41 is the shaft 36a of the handle 36.
It is a screw for fixing the clasp 40 to the tip of the.

In the present embodiment configured as described above, first, in order to attach the mounting frame 27 to the inspection port 3, the bolt 28 of the mounting frame 27 is inserted into the hole 1a of the casing 1, and the mounting frame 27 is inspected. 3 from the front side, and nuts on bolts 28
When 29 is screwed, the mounting frame 27 is fixed to the casing 1, and the casing 1 and the mounting frame 27 are sealed by the heat insulating material 30.

When the heat insulating material 33 is inserted between the heat insulating material 2 and the heat insulating material 32, the inner wall of the casing 1 exposed inside the casing 1, the bolt 28 and the nut 29 are completely covered with the heat insulating material 38. As a result, the inside of the casing 1 does not come into contact with the air whose temperature and humidity are adjusted.

Next, in order to rotatably attach the handle 36 and the clasp 40 to the door 34, first, a nut 38 is screwed through a washer 39 to a bearing 37 which is inserted into the hole 34d, and a collar portion 37b of the bearing 37 is attached. And washer 39
With the outer plate 34a of the door 34 and the heat insulating material 35 sandwiched between the bearing 37 and the door 3
Stuck on 4. Next, the handle 3 inserted into the bearing 37
6 After fitting the hole at the rear of the clasp 40 to the projection at the tip of the shaft portion 36a, and screwing the screw 41 to the tip of the shaft portion 36a, the tip of the clasp 40 is attached to the shaft portion 36a of the handle 36. On the other hand, the handle 36 and the clasp 40 are pivotally attached to the door 34 while being fixed in a state of protruding in the vertical direction.

Therefore, in order to attach the door 34 to the attachment frame 27 and close the inspection port 3, the door receiving frame portion 27 of the attachment frame 27 attached to the casing 1
After fitting the door 34 into c, turn the handle 36 and
When the front end portion of is engaged with the door receiving frame portion 27c of the mounting frame 27,
The outer peripheral edge of the door 34 protruding to the back side is pressed against the heat insulating material 31 of the door receiving frame portion 27c to fix the door 34 to the mounting frame 27, and the heat insulating material between the door 34 and the mounting frame 27. Sealed by 31.

FIG. 3 is a partial cross-sectional view of the door of the air conditioner inspection lid and the viewing window taken along the line BB in FIG. 1, and the same reference numerals as those in FIGS. 1 and 2 indicate the same portions. Further, 42 is a ring-shaped window frame having a hook-shaped cross section in which the inner peripheral portion is bent to form a window plate receiving frame portion 42a, and the frame base portion of the outer peripheral portion of the window frame 42 is formed.
Four holes 42c are formed in 42b at equal intervals. 43 is a ring-shaped heat insulating material such as sponge rubber fitted in the window plate receiving frame portion 42a, 44 is a disk-shaped window plate made of a transparent heat insulating member such as acrylic resin, the outer diameter of the window plate 44 is The outer diameter of the window plate receiving frame portion 42a of the window frame 42 is substantially equal. Reference numeral 45 is a metal ring-shaped holding plate having four holes 45a formed at equal intervals.
The outside diameter of the window frame is slightly larger than the outside diameter of the window frame 42, and the inside diameter is
It is almost equal to the inner diameter of 42. 46 has four counter boring holes 46a on one surface at equal intervals, and four counter boring holes 46b on the other surface so as to be located in the middle of these four counter boring holes 46a. Open at intervals and each counterbore hole 46a and
A heat retaining ring in which a hole 46c is formed between the face provided with the counterbore holes 46a and 46b and the face opposite to the heat retaining ring 46b.
The outer diameter and inner diameter of is equal to the outer diameter and inner diameter of the pressing plate 45. 47
Is a screw that is screwed into the nut 48.

In order to attach the peep window thus constructed to the inspection cover for the air conditioner of the present invention, first, the window plate 44 is attached to the window plate receiving frame portion 42a.
The press plate 45 and the heat retaining ring 46 are sequentially stacked on the window frame 42 in which the screws are inserted, and then the screw 47 inserted through the holes 42c, 45a and 46c.
Is screwed onto the nut 48 inserted into the counterbore hole 46b. Then, the window plate 44 and the pressing plate 45 are sandwiched between the window frame 42 and the heat retaining ring 46, and the window frame 42, the window plate 44, the pressing plate 45, and the heat retaining ring 46 are integrally fixed, and the window frame is also attached. The heat insulating material 43 seals the space between 42 and the window plate 44, and the heat insulating ring 46 seals between the holding plate 45 and the heat insulating ring 46.
And the pressing plate 45 are in close contact with each other.

Next, the window frame 42, the window plate 44, the pressing plate 45, and the heat retaining ring 46 that are integrally fixed to each other are provided through the peephole 3 from the rear side of the outer plate 34a of the door 34.
Fit into the notch of the heat insulating material 35 around 4b and keep it warm
After contacting 46 with the back surface of the outer plate 34a, and inserting the window plate 44 into the window plate receiving frame portion 42a of the window frame 42, the one around the peep hole 34b from the front side of the outer plate 34a of the door 34 Holes on the outer plate 34a
A screw 47 inserted through 42c, 34c, and 46c is screwed into a nut 48 that is previously inserted into the counterbore 46a. Then, the outer plate 34
a and the window plate 44 are sandwiched between the window frame 42 and the heat retaining ring 46 to secure the window frame 42, the window plate 44 and the holding plate 45.
46 and the window plate 44 are fixed to the door 34, and at the same time, the window frame 42 and the window plate
A heat insulating material 43 is provided between the outer plate 34a and the heat insulating ring 46.
The heat insulating ring 46 seals the space between the outer plate 34a and the window plate 44, and the outer plate 34a and the window plate 44 closely contact each other. In other words, the two window plates 44 are fixed to the front side and the back side of the outer plate 34a, respectively, and at the same time, the space between the two window plates 44 is sealed.

Therefore, when the inspection cover for an air conditioner without a sight glass or with a sight window of the present invention is attached to the inspection port 3 of the casing 1,
Since the members are sealed by the heat insulating materials 30, 31, 43 and the heat retaining ring 46, the air whose temperature and humidity are adjusted inside the casing 1 does not leak from the inspection port 3 to the outside of the casing 1.

Further, in the mounting frame 27 and the door 34, the frame base portion 27a and the door receiving frame portion 27c of the mounting frame 27 arranged inside the casing 1 are insulated by the heat insulating material 32, and the inner wall of the casing 1, the bolt 28 and the nut 29 are insulated. Since the back surface of the outer plate 34a of the door 34 is covered with the heat insulating material 35 by the material 33, and the handle 36 and the bearing 37 are formed by the heat insulating member, the heat of the air whose temperature and humidity are adjusted inside the casing 1 is It is possible to block the transmission to the outside of the casing 1 via such portions.

Further, in the peep window, a screw 47 for integrally fixing the window frame 42, the window plate 44, the pressing plate 45 and the heat retaining ring 46 is screwed to the nut 48 inserted into the counterbore hole 46b on one surface of the heat retaining ring 46. In addition, the window frame 42 in which the window plate 44 is fitted, and the window frame 42 and the window plate 44
And a heat retaining ring 46 integrally fixed to the holding plate 45 and a screw 47 for fixing the heat retaining ring 46 to the outer plate 34a of the peep hole 34b of the door 34, and a nut 48 inserted into the counterbore hole 46a on the other surface of the heat retaining ring 46. By wearing it, the heat of the air whose temperature and humidity inside the casing 1 have been adjusted can be blocked from being transmitted to the outside of the casing 1.

In the embodiment of the present invention, the so-called detachable air conditioner inspection lid in which the door 34 is inserted into and removed from the mounting frame 27 from the front side has been described as an example. Instead of 36 etc., a hinge (not shown) is attached between the mounting frame 27 and the door 34, and the door 34 is attached to the mounting frame 27 so as to be openable and closable on the front side or the back side. It can also be applied to the inspection lid for air conditioners.

(Effect of the Invention) As described above, according to the air conditioner inspection lid of the present invention, in the mounting frame and the door, the portion of the mounting frame protruding into the casing or the duct of the mounting frame and the mounting frame of the casing or the duct. The inner wall of the casing or duct around the bolts and nuts fixed to and the back surface of the outer plate of the door are covered with a heat insulating material, and the handle and its bearing are formed of a heat insulating member. It is possible to block the heat of the humidity-controlled air from being transmitted to the outside of the casing or the duct through these portions.

In addition, in the peephole, a screw for integrally fixing the window frame, the window plate, the pressing plate, and the heat retaining ring is screwed into the nut inserted into the counterbore hole on one surface of the heat retaining ring, and the window plate is fitted. The screws that fix the window frame and the heat retaining ring that integrally secures the window frame, the window plate, and the holding plate to the outer plate of the peephole of the door are attached to the nuts inserted in the counterbore holes on the other side of the heat retaining ring. By screwing, the heat of the air whose temperature and humidity are adjusted inside the casing or the duct can be blocked from being transferred to the outside of the casing or the duct.

As a result, there is an effect that the thermal efficiency of the air conditioner is improved, and dew condensation does not occur in the casing or duct around the air conditioner inspection cover and the air conditioner inspection cover, and the air conditioner inspection cover and The effect that the casing or the duct does not corrode is exhibited.

[Brief description of drawings]

FIG. 1 is a front view of an air conditioner inspection lid of the present invention, and FIG. 2 is a partial cross-sectional view of the air conditioner inspection lid door and a mounting frame taken along the line AA in FIG. Is a partial cross-sectional view of the door and the viewing window of the air conditioner inspection lid taken along the line BB in FIG. 1, FIG. 4 is a front view of the conventional air conditioner inspection lid, and FIG. 5 is FIG. FIG. 6 is a partial cross-sectional view of the door and the mounting frame of the air conditioner inspection lid taken along the line AA in FIG. 6, and FIG. 6 is a portion of the air conditioner inspection lid door and the view window taken along the line BB in FIG. FIG. 1 ... Casing, 2,30,31,32,33,35,43 ... Insulation material, 3
… Inspection port, 27… Mounting frame, 28… Bolts, 29, 48… Nuts, 3
4 ... Door, 34b ... Peephole, 36 ... Handle, 37 ... Bearing, 40 ... Clasp, 42 ... Window frame, 42a ... Window plate receiving frame part, 44 ... Window plate, 45 ... Press plate, 46 ... Heat retaining ring, 46a, 46b ... countersunk holes, 47 ... screws.

Claims (2)

[Scope of utility model registration request] 1. A door, which is removably or removably attached to the mounting frame, is fitted into a mounting frame fixed to an inspection opening formed in a casing or a duct of an air conditioner whose inside is covered with a heat insulating material. An air conditioner that closes the inspection port by operating a handle pivotally supported by a bearing penetrating the door and engaging a retainer attached to the tip of the handle with the attachment frame. In the inspection lid for use, a heat insulating material for covering a portion of the mounting frame projecting into the casing or the duct, a bolt and a nut fixing the mounting frame to the casing or the duct, and the casing or the duct around the bolt and nut. For an air conditioner, comprising: a heat insulating material covering an inner wall of the door; a heat insulating material pasted on a back surface of the outer plate of the door; and the bearing and the handle made of a heat insulating member. Kenfuta. 2. A window plate made of a transparent heat insulating member for closing a peephole formed in the door, and two window plates for holding an outer peripheral edge of the window plate by a window plate receiving frame portion of an inner peripheral portion. A ring-shaped window frame and a plurality of counterbore holes on one surface, and a plurality of counterbore holes on the other surface so that it is located between these counterbore holes. A heat insulating ring made of a member, a metal holding plate having an outer diameter and an inner diameter equal to that of the heat insulating ring, the window frame in which the window plate is fitted, the holding plate, and the heat insulating ring, which are sequentially inserted. A screw for integrally fixing the window frame, the window plate, the holding plate and the heat retaining ring by screwing the nut inserted into the counterbore hole on one surface of the heat retaining ring, and the window plate. The window frame, the outer plate of the door, the window frame, the window plate and the holding plate The two window plates are inserted into the peephole of the door by sequentially inserting the heat insulation ring fixed to the body and screwing the nut inserted into the counterbore hole on the other surface of the heat insulation ring. The inspection cover for an air conditioner according to claim 1, further comprising a fixing screw.